Blowing out candles with carbon dioxide from a breath out? - RKIn

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Blowing out candles with carbon dioxide from a breath out?

We blow candles to blow out the candles.
So why can we turn off candles with exhalation?

In a brief explanation of breathing, breathing in is to breathe oxygen, Exhaling is said to be to release carbon dioxide.

Technically, however, carbon dioxide does not itself extinguish fire.
playing an indirect function in blocking oxygen so as to prevent the fire from being maintained.

In the case of CO2 fire extinguishers, they use the cooling effect of changes in pressure as they erupt.



Also, in fact, your exhalation contains more oxygen than carbon dioxide.

Most of them are made of nitrogen.

Oxygen is around 15%, carbon dioxide is around 4%. It's a lot of oxygen.

So when you turn off the fuel, the carbon dioxide in your breath doesn't matter.

The reason you can put out the fire is because of the wind coming out of your breath.

The factors that can keep fire in place are temperatures above the ignition point, burn materials, and oxygen.

The wind blows the burning substance out of it to extinguish the fire.

In the case of candles, the flame persists because the paraffin component evaporates and continues to be supplied.

When the wind blows, the vaporized paraffin blows away, and the candle that has lost the material to burn goes out.


Therefore, the reason why we blow out candles is not because of the carbon dioxide in our breath, but because of the wind.

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